nuttx-apps/netutils/netlib/netlib_seteaddr.c
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C

/****************************************************************************
* netutils/netlib/netlib_seteaddr.c
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <stdint.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <net/if.h>
#include <nuttx/wireless/ieee802154/ieee802154_mac.h>
#include "netutils/netlib.h"
#if defined(CONFIG_NET_6LOWPAN) || defined(CONFIG_NET_IEEE802154)
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: netlib_seteaddr
*
* Description:
* Set the IEEE802.15.4 extended MAC address
*
* Parameters:
* ifname The name of the interface to use
* eaddr The new extended address
*
* Return:
* 0 on success; -1 on failure. errno will be set on failure.
*
****************************************************************************/
int netlib_seteaddr(FAR const char *ifname, FAR const uint8_t *eaddr)
{
struct ieee802154_netmac_s arg;
int ret = ERROR;
if (ifname != NULL)
{
/* Get a socket (only so that we get access to the INET subsystem) */
int sockfd = socket(PF_INET6, NETLIB_SOCK_TYPE, 0);
if (sockfd >= 0)
{
/* Perform the IOCTL */
strncpy(arg.ifr_name, ifname, IFNAMSIZ);
arg.u.setreq.attr = IEEE802154_ATTR_MAC_EADDR;
IEEE802154_EADDRCOPY(arg.u.setreq.attrval.mac.eaddr, eaddr);
ret = ioctl(sockfd, MAC802154IOC_MLME_SET_REQUEST,
(unsigned long)((uintptr_t)&arg));
if (ret < 0)
{
ret = -errno;
fprintf(stderr, "MAC802154IOC_MLME_SET_REQUEST failed: %d\n",
ret);
}
close(sockfd);
}
}
return ret;
}
#endif /* CONFIG_NET_6LOWPAN || CONFIG_NET_IEEE802154 */